Does anyone know the bolt size that mounts the front engine mount to the crossmember?
Thanks
Grant
--
1974 GMC Sequoia 26'
Thanks
Grant
--
1974 GMC Sequoia 26'
Engine front mount bolts
- Thread starter grant schaffer
- Start date
Grant,
The front mount fastens to the cross member with 1/2 studs and nuts. I had the studs come out of my front mount, and I really did try to put them
back with the engine on the frame. I gave up. I separated the studs from nuts, jacked up the engine and put the studs back in the front mount and
set it down again. Then it was easy to get the nuts started.
Matt
--
Matt & Mary Colie - Chaumière -'73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan with OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Near DTW - Twixt A2 and Detroit
The front mount fastens to the cross member with 1/2 studs and nuts. I had the studs come out of my front mount, and I really did try to put them
back with the engine on the frame. I gave up. I separated the studs from nuts, jacked up the engine and put the studs back in the front mount and
set it down again. Then it was easy to get the nuts started.
Matt
--
Matt & Mary Colie - Chaumière -'73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan with OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Near DTW - Twixt A2 and Detroit
I am looking for the Bolts that mount through the cross member and attach to the center of the front Engine mount. I belive they are 5/8 but non of
the bolts I removed match.
--
1974 GMC Sequoia 26'
the bolts I removed match.
--
1974 GMC Sequoia 26'
> I am looking for the Bolts that mount through the cross member and attach to the center of the front Engine mount. I belive they are 5/8 but non
> of the bolts I removed match.
Grant,
Don't be looking for a bolt (hhcs). You are looking for two each studs and nuts. The nuts are shoulder prevailing torque lock nuts which is why they
take the studs out with them.
Matt
--
Matt & Mary Colie - Chaumière -'73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan with OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Near DTW - Twixt A2 and Detroit
> of the bolts I removed match.
Grant,
Don't be looking for a bolt (hhcs). You are looking for two each studs and nuts. The nuts are shoulder prevailing torque lock nuts which is why they
take the studs out with them.
Matt
--
Matt & Mary Colie - Chaumière -'73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan with OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Near DTW - Twixt A2 and Detroit
Exactly what Matt said. They are supposed
To be studs out of the motor mount. And you remove 2 Nuts.
However. 50/50. I have pulled out a few bolts too. If someone else has had your engine out,
They
Might have out a bolt in there.
A stud
And nut is much better when taking engine in and out and wanting things to aline.
--
Jon Roche
75 palm beach
EBL EFI, manny headers, Micro Level, rebuilt most of coach now.
St. Cloud, MN
http://lqqkatjon.blogspot.com/
To be studs out of the motor mount. And you remove 2 Nuts.
However. 50/50. I have pulled out a few bolts too. If someone else has had your engine out,
They
Might have out a bolt in there.
A stud
And nut is much better when taking engine in and out and wanting things to aline.
--
Jon Roche
75 palm beach
EBL EFI, manny headers, Micro Level, rebuilt most of coach now.
St. Cloud, MN
http://lqqkatjon.blogspot.com/
The studs (not bolts) you need, GM part #390403, are special studs with a large shoulder between the two threaded ends. You might be able to jury-rig
something with studs and a stack of washers, but I'd recommend checking with one of the Jims, or Cinnabar, or someone with a parts coach. Don't know,
but maybe a Toronado would have the same parts. (My old 1980 Chilton's appears to show the same front mount on the Toronado).
HTH
Rick Staples
--
Rick Staples, '75 Eleganza, Johnstown, CO
"Advice is a dangerous gift, even from the Wise to the Wise, and all paths may run ill." -Tolkien
something with studs and a stack of washers, but I'd recommend checking with one of the Jims, or Cinnabar, or someone with a parts coach. Don't know,
but maybe a Toronado would have the same parts. (My old 1980 Chilton's appears to show the same front mount on the Toronado).
HTH
Rick Staples
--
Rick Staples, '75 Eleganza, Johnstown, CO
"Advice is a dangerous gift, even from the Wise to the Wise, and all paths may run ill." -Tolkien
Grant,
We can supply a used stud and nut.
On Sat, Oct 10, 2020 at 7:54 AM Matt Colie via Gmclist <
> Grant,
>
> The front mount fastens to the cross member with 1/2 studs and nuts. I
> had the studs come out of my front mount, and I really did try to put them
> back with the engine on the frame. I gave up. I separated the studs from
> nuts, jacked up the engine and put the studs back in the front mount and
> set it down again. Then it was easy to get the nuts started.
>
> Matt
> --
> Matt & Mary Colie - Chaumière -'73 Glacier 23 - Members GMCMI, GMCGL,
> GMCES
> Electronically Controlled Quiet Engine Cooling Fan with OE Rear Drum
> Brakes with Applied Control Arms
> SE Michigan - Near DTW - Twixt A2 and Detroit
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
--
Jim Kanomata
Applied/GMC, Newark,CA
jimk
http://www.gmcrvparts.com
1-800-752-7502
We can supply a used stud and nut.
On Sat, Oct 10, 2020 at 7:54 AM Matt Colie via Gmclist <
> Grant,
>
> The front mount fastens to the cross member with 1/2 studs and nuts. I
> had the studs come out of my front mount, and I really did try to put them
> back with the engine on the frame. I gave up. I separated the studs from
> nuts, jacked up the engine and put the studs back in the front mount and
> set it down again. Then it was easy to get the nuts started.
>
> Matt
> --
> Matt & Mary Colie - Chaumière -'73 Glacier 23 - Members GMCMI, GMCGL,
> GMCES
> Electronically Controlled Quiet Engine Cooling Fan with OE Rear Drum
> Brakes with Applied Control Arms
> SE Michigan - Near DTW - Twixt A2 and Detroit
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
--
Jim Kanomata
Applied/GMC, Newark,CA
jimk
http://www.gmcrvparts.com
1-800-752-7502
Yes you are correct there is a bolt / stud what ever you want to call it today and a nut that hold the rubber mount on to the mounting plate the
mounting plate or " front motor mount" is attached to the front of the engine right under the water pump. now can anyone tell how one will secure the
mount and the rubber isolator that is attached to the front motor mount to the frame cross over? there are two bolts that screw into a metal plate
that is held in place by the rubber isolator.
New Front Motor Mounts - GMC Motorhome at JIM K site, WESTAR EM5450 or DEA / MARMON RIDE CONTROL A5034 there are 4 holes, the two outside get a stud
and a nut and possible a couple washers and the two internal that mount from the inside of the front crossover though the crossover to these threaded
holes on the rubber " front motor mount" threaded holes get what ? 5/16" - 1" ? 3/8" 1? 1/2" -1"?
--
1974 GMC Sequoia 26'
mounting plate or " front motor mount" is attached to the front of the engine right under the water pump. now can anyone tell how one will secure the
mount and the rubber isolator that is attached to the front motor mount to the frame cross over? there are two bolts that screw into a metal plate
that is held in place by the rubber isolator.
New Front Motor Mounts - GMC Motorhome at JIM K site, WESTAR EM5450 or DEA / MARMON RIDE CONTROL A5034 there are 4 holes, the two outside get a stud
and a nut and possible a couple washers and the two internal that mount from the inside of the front crossover though the crossover to these threaded
holes on the rubber " front motor mount" threaded holes get what ? 5/16" - 1" ? 3/8" 1? 1/2" -1"?
--
1974 GMC Sequoia 26'
I never have used it on the front center, I'll try it tomorrow.
On Mon, Oct 12, 2020 at 9:05 PM Grant Schaffer via Gmclist <
> Yes you are correct there is a bolt / stud what ever you want to call it
> today and a nut that hold the rubber mount on to the mounting plate the
> mounting plate or " front motor mount" is attached to the front of the
> engine right under the water pump. now can anyone tell how one will secure
> the
> mount and the rubber isolator that is attached to the front motor mount to
> the frame cross over? there are two bolts that screw into a metal plate
> that is held in place by the rubber isolator.
>
> New Front Motor Mounts - GMC Motorhome at JIM K site, WESTAR EM5450 or DEA
> / MARMON RIDE CONTROL A5034 there are 4 holes, the two outside get a stud
> and a nut and possible a couple washers and the two internal that mount
> from the inside of the front crossover though the crossover to these
> threaded
> holes on the rubber " front motor mount" threaded holes get what ? 5/16" -
> 1" ? 3/8" 1? 1/2" -1"?
> --
> 1974 GMC Sequoia 26'
>
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
--
Jim Kanomata
Applied/GMC, Newark,CA
jimk
http://www.gmcrvparts.com
1-800-752-7502
On Mon, Oct 12, 2020 at 9:05 PM Grant Schaffer via Gmclist <
> Yes you are correct there is a bolt / stud what ever you want to call it
> today and a nut that hold the rubber mount on to the mounting plate the
> mounting plate or " front motor mount" is attached to the front of the
> engine right under the water pump. now can anyone tell how one will secure
> the
> mount and the rubber isolator that is attached to the front motor mount to
> the frame cross over? there are two bolts that screw into a metal plate
> that is held in place by the rubber isolator.
>
> New Front Motor Mounts - GMC Motorhome at JIM K site, WESTAR EM5450 or DEA
> / MARMON RIDE CONTROL A5034 there are 4 holes, the two outside get a stud
> and a nut and possible a couple washers and the two internal that mount
> from the inside of the front crossover though the crossover to these
> threaded
> holes on the rubber " front motor mount" threaded holes get what ? 5/16" -
> 1" ? 3/8" 1? 1/2" -1"?
> --
> 1974 GMC Sequoia 26'
>
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
--
Jim Kanomata
Applied/GMC, Newark,CA
jimk
http://www.gmcrvparts.com
1-800-752-7502
